3v4l.org

run code in 300+ PHP versions simultaneously
<?php function userland_func_get_arg($idx) { return isset(debug_backtrace()[1]['args'][$idx]) ? debug_backtrace()[1]['args'][$idx] : false; } function foo(&$arg) { $a = func_get_arg(0); $a = 'bar'; } function bar(&$arg) { $a = userland_func_get_arg(0); $a = 'bar'; } $foo = 'foo'; foo($foo); var_dump($foo); $foo = 'foo'; bar($foo); var_dump($foo);

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.70.0140.00018.29
8.3.60.0110.00418.43
8.3.50.0100.01122.04
8.3.40.0110.00418.82
8.3.30.0150.00019.14
8.3.20.0070.00020.37
8.3.10.0040.00420.47
8.3.00.0030.00519.04
8.2.180.0100.00316.75
8.2.170.0140.00022.96
8.2.160.0100.00320.35
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0000.00826.16
8.2.120.0090.00022.14
8.2.110.0070.00320.38
8.2.100.0000.01118.03
8.2.90.0080.00019.05
8.2.80.0000.00817.97
8.2.70.0060.00317.63
8.2.60.0000.00717.78
8.2.50.0030.00518.07
8.2.40.0060.00318.09
8.2.30.0070.00318.06
8.2.20.0070.00017.60
8.2.10.0060.00318.07
8.2.00.0040.00417.72
8.1.280.0130.00625.92
8.1.270.0040.00422.05
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0090.00024.01
8.1.230.0090.00319.00
8.1.220.0060.00317.74
8.1.210.0050.00318.77
8.1.200.0060.00317.22
8.1.190.0040.00417.11
8.1.180.0000.00818.10
8.1.170.0070.00318.49
8.1.160.0040.00421.96
8.1.150.0000.00718.83
8.1.140.0000.00717.36
8.1.130.0030.00317.96
8.1.120.0000.00817.40
8.1.110.0000.00817.35
8.1.100.0030.00317.40
8.1.90.0000.00717.44
8.1.80.0030.00517.42
8.1.70.0000.00717.36
8.1.60.0030.00517.60
8.1.50.0040.00417.50
8.1.40.0070.00017.52
8.1.30.0030.00617.72
8.1.20.0000.00817.57
8.1.10.0100.00017.48
8.1.00.0040.00417.50
8.0.300.0020.00518.77
8.0.290.0070.00016.63
8.0.280.0000.00718.43
8.0.270.0070.00017.11
8.0.260.0000.00817.12
8.0.250.0000.00716.78
8.0.240.0000.00716.79
8.0.230.0000.00616.80
8.0.220.0030.00516.84
8.0.210.0030.00316.88
8.0.200.0020.00516.82
8.0.190.0040.00316.89
8.0.180.0050.00316.72
8.0.170.0060.00316.87
8.0.160.0000.00816.85
8.0.150.0000.00716.79
8.0.140.0030.00616.77
8.0.130.0000.00613.22
8.0.120.0000.00716.77
8.0.110.0070.00016.80
8.0.100.0040.00416.82
8.0.90.0000.00716.87
8.0.80.0060.00916.87
8.0.70.0040.00416.80
8.0.60.0000.00716.67
8.0.50.0070.00016.68
8.0.30.0110.00817.08
8.0.20.0080.01117.40
8.0.10.0030.00516.98
8.0.00.0120.00616.95
7.4.330.0000.00615.00
7.4.320.0000.00716.45
7.4.300.0000.00616.66
7.4.290.0030.00316.61
7.4.280.0040.00416.54
7.4.270.0070.00016.65
7.4.260.0020.00516.43
7.4.250.0000.00716.59
7.4.240.0070.00016.54
7.4.230.0020.00516.51
7.4.220.0090.01316.70
7.4.210.0070.00716.71
7.4.200.0030.00316.57
7.4.160.0110.00716.49
7.4.150.0060.01217.40
7.4.140.0080.01317.86
7.4.130.0070.01216.52
7.4.120.0100.00816.54
7.4.110.0100.01316.69
7.4.100.0070.01016.50
7.4.90.0040.01316.36
7.4.80.0060.00919.39
7.4.70.0100.00716.47
7.4.60.0030.01316.63
7.4.50.0000.00816.59
7.4.40.0120.00616.70
7.4.30.0110.01116.35
7.4.00.0120.00314.77
7.3.330.0060.00013.21
7.3.320.0060.00013.20
7.3.310.0040.00416.32
7.3.300.0060.00016.39
7.3.290.0070.01116.38
7.3.280.0100.00616.34
7.3.270.0060.01317.40
7.3.260.0150.00916.30
7.3.250.0100.00716.38
7.3.240.0150.00316.45
7.3.230.0130.00316.44
7.3.210.0060.01016.26
7.3.200.0060.01119.39
7.3.190.0090.01316.59
7.3.180.0090.00616.51
7.3.170.0130.00616.27
7.3.160.0130.00316.58
7.3.120.0110.00414.71
7.3.110.0070.01014.72
7.3.100.0060.01114.91
7.3.90.0070.00714.54
7.3.80.0090.00614.96
7.3.70.0090.00014.97
7.3.60.0060.00614.98
7.3.50.0070.00714.65
7.3.40.0070.00314.82
7.3.30.0070.00414.94
7.3.20.0100.00716.57
7.3.10.0000.01616.28
7.3.00.0070.00416.42
7.2.330.0080.00816.78
7.2.320.0070.01016.78
7.2.310.0120.00316.37
7.2.300.0030.01316.75
7.2.290.0100.00716.51
7.2.240.0110.00714.95
7.2.230.0100.00715.27
7.2.220.0100.00614.95
7.2.210.0070.00714.99
7.2.200.0070.00414.88
7.2.190.0080.00514.98
7.2.180.0040.00715.09
7.2.170.0080.00515.15
7.2.160.0060.00915.00
7.2.150.0000.01717.06
7.2.140.0070.00716.70
7.2.130.0080.00416.92
7.2.120.0100.00716.82
7.2.110.0060.00616.85
7.2.100.0090.00616.77
7.2.90.0000.01016.91
7.2.80.0070.00316.78
7.2.70.0070.00716.90
7.2.60.0030.00916.91
7.2.50.0040.01117.09
7.2.40.0060.00916.88
7.2.30.0030.00616.89
7.2.20.0070.00716.92
7.2.10.0060.00616.66
7.2.00.0040.00818.26
7.1.330.0070.00715.97
7.1.320.0060.00915.86
7.1.310.0060.00915.49
7.1.300.0040.01215.54
7.1.290.0030.01015.80
7.1.280.0040.00715.70
7.1.270.0050.00815.69
7.1.260.0060.00915.98
7.1.250.0060.00315.83
7.1.100.0000.01317.86
7.1.70.0090.00317.19
7.1.60.0170.00719.32
7.1.50.0060.00916.99
7.1.00.0030.07722.43
7.0.200.0040.00416.39
7.0.140.0030.06722.08
7.0.60.0030.04019.80
7.0.50.0030.04017.80
7.0.40.0000.08020.07
7.0.30.0600.07320.13
7.0.20.0230.04720.33
7.0.10.0270.04720.12
7.0.00.0000.06720.15
5.6.280.0030.07320.97
5.6.210.0200.04320.70
5.6.200.0030.04018.25
5.6.190.0070.08320.46
5.6.180.3870.04720.34
5.6.170.0370.05320.46
5.6.160.0070.08320.44
5.6.150.0100.08318.18
5.6.140.0030.04318.29
5.6.130.0100.04318.18
5.6.120.0100.08321.14
5.6.110.0070.06720.90
5.6.100.0070.08321.12
5.6.90.0170.06021.01
5.6.80.0100.07320.35
5.6.70.4530.03720.40
5.5.350.0370.07320.41
5.5.340.0070.07017.95
5.5.330.0130.08020.40
5.5.320.0200.04020.27
5.5.310.0400.07320.19
5.5.300.0070.08017.98
5.5.290.0070.04717.97
5.5.280.0100.07320.88
5.5.270.0170.07720.77
5.5.260.0100.08320.88
5.5.250.0230.06320.71
5.5.240.0170.05020.26
5.4.450.0730.04719.20
5.4.440.0630.06319.32
5.4.430.0570.05019.43
5.4.420.0730.00019.38
5.4.410.0670.00019.21
5.4.400.0670.00019.09
5.4.390.0630.00019.16
5.4.380.0830.00019.26
5.4.370.0670.00019.13
5.4.360.0670.00019.25
5.4.350.0670.00019.06
5.4.340.0630.00019.09
5.4.320.0070.03512.51
5.4.310.0070.03812.51
5.4.300.0100.03212.51
5.4.290.0040.04412.51
5.4.280.0070.03812.40
5.4.270.0010.03912.41
5.4.260.0070.03612.41
5.4.250.0060.03712.40
5.4.240.0080.03812.41
5.4.230.0130.03712.40
5.4.220.0050.03612.39
5.4.210.0040.03612.38
5.4.200.0070.03612.39
5.4.190.0080.03312.39
5.4.180.0050.03612.39
5.4.170.0080.03312.39
5.4.160.0050.03612.39
5.4.150.0050.03712.39
5.4.140.0120.03812.08
5.4.130.0050.04212.07
5.4.120.0050.03612.02
5.4.110.0070.03412.02
5.4.100.0080.03312.02
5.4.90.0040.03812.02
5.4.80.0060.03612.02
5.4.70.0070.03312.01
5.4.60.0060.03412.01
5.4.50.0070.03312.01
5.4.40.0040.03512.00
5.4.30.0020.03912.00
5.4.20.0070.03712.00
5.4.10.0090.03812.00
5.4.00.0070.03511.49
5.3.290.0060.03812.80
5.3.280.0060.03712.71
5.3.270.0060.03812.72
5.3.260.0070.03712.72
5.3.250.0040.03912.72
5.3.240.0040.03912.71
5.3.230.0080.04212.71
5.3.220.0080.03412.68
5.3.210.0090.04012.68
5.3.200.0060.03912.68
5.3.190.0060.03712.67
5.3.180.0040.03812.67
5.3.170.0080.03312.67
5.3.160.0080.03312.67
5.3.150.0060.03612.68
5.3.140.0030.04112.66
5.3.130.0060.04012.65
5.3.120.0030.04312.66
5.3.110.0070.03612.66
5.3.100.0030.04612.13
5.3.90.0060.04112.11
5.3.80.0060.03712.09
5.3.70.0060.04012.09
5.3.60.0060.04112.08
5.3.50.0080.03512.02
5.3.40.0070.04012.02
5.3.30.0080.03411.98
5.3.20.0030.03711.76
5.3.10.0100.03311.73
5.3.00.0060.04011.71
5.2.170.0030.0329.21
5.2.160.0060.0289.21
5.2.150.0050.0299.21
5.2.140.0050.0379.21
5.2.130.0070.0309.17
5.2.120.0030.0299.17
5.2.110.0050.0299.18
5.2.100.0050.0289.18
5.2.90.0040.0339.18
5.2.80.0080.0269.17
5.2.70.0070.0299.17
5.2.60.0050.0359.12
5.2.50.0030.0319.09
5.2.40.0050.0279.07
5.2.30.0060.0299.05
5.2.20.0090.0259.04
5.2.10.0080.0268.94
5.2.00.0040.0308.80
5.1.60.0040.0258.08
5.1.50.0050.0338.08
5.1.40.0060.0228.06
5.1.30.0050.0258.41
5.1.20.0060.0278.43
5.1.10.0040.0268.16
5.1.00.0030.0268.16
5.0.50.0030.0206.64
5.0.40.0050.0176.50
5.0.30.0020.0326.30
5.0.20.0020.0206.28
5.0.10.0010.0226.26
5.0.00.0020.0316.25
4.4.90.0020.0164.78
4.4.80.0010.0164.76
4.4.70.0020.0184.76
4.4.60.0040.0174.76
4.4.50.0010.0194.77
4.4.40.0030.0254.71
4.4.30.0070.0114.76
4.4.20.0030.0154.84
4.4.10.0040.0164.85
4.4.00.0010.0274.76
4.3.110.0020.0164.67
4.3.100.0030.0154.67
4.3.90.0030.0144.63
4.3.80.0040.0234.59
4.3.70.0020.0184.63
4.3.60.0050.0124.63
4.3.50.0000.0184.63
4.3.40.0030.0244.54
4.3.30.0020.0163.30
4.3.20.0020.0153.29
4.3.10.0000.0213.24
4.3.00.0100.01716.50

preferences:
37.61 ms | 401 KiB | 5 Q